The film follows the Paw Patrol team as they crash-land on a tropical island teeming with dinosaurs due to a storm, and their struggle to stop a volcanic eruption—triggered by Mayor Humdinger’s environmentally damaging excavations—and save the island.

After their ships are caught in a violent storm, the Paw Patrol pups take refuge on an unknown island, where they meet Rex, an expert on dinosaurs. Meanwhile, Mayor Humdinger, seeking to seize the island’s natural resources, awakens a dormant volcano through his reckless excavations. The team embarks on risky rescue operations that push them beyond their limits to prevent this disaster from threatening life on the island.